What kinds of hazards will future astronauts face as they journey to the Red Planet, and what is NASA planning to do about them? Freelancer Mark Wolverton answers these questions in "No Trip Around the Block." And in our second feature, freelancer Nick D'Alto returns to StarDate magazine with "Heaven on Earth." He explains that while most of our studies of the heavens, by nature, are done from afar, some objects on Earth, too, can tell us about the Sun and stars. And it's more than just meteorites.